arkas.dk

📜 Historical scan 2026-07-03 07:07:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arkas.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 23 May 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 128.140.28.110 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by arkas-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 79ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 121ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
128.140.28.110	3600s	static.110.28.140.128.clients.your-server.de	AS24940	Hetzner Online GmbH	128.140.0.0/17	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 120ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	arkas-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::6 2a01:111:f403:ca09::3 2a01:111:f403:ca09::5 52.101.68.0 52.101.68.18 52.101.68.21 52.101.73.15	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 159ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 193ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF#

Policy	Record (arkas.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 18:06:09

www CNAME	arkas.dk (all on arkas.dk) → 128.140.28.110 (AS24940)
www vs bare domain	Same network arkas.dk: 128.140.28.110 (AS24940) www.arkas.dk: 128.140.28.110 (AS24940)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-arkas-dk._domainkey.arkasas.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

181ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

52ms

Field	Value
Serial	2025101002
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 19:30:14

Field	Value
Registrar	Simply.com A/S
Registered	2011-05-23
Expires	2027-05-31 (226d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

79ms

121ms

120ms

AAAA

79ms

TXT

193ms

CAA

44ms

HTTPS

88ms

TLSA

237ms

SOA

52ms

MTA-STS

156ms

DNSSEC

181ms

SRV

159ms

Total

975ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 18:06:09	1283ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 05:52:40	2651ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 05:37:49	1165ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-03 07:07:18 shown	975ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-21 22:50:56	618ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-19 07:39:50	965ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:39:19	2687ms	3 NS 1 A 1 MX	🔒 Secure